Improvement in bolts



0. c. SllUY-ER.

Bolts. N ,15 ,23 Patented ocn27,1sz4'.

17271672 in r:

THE GRAPH") co.9uoro'-u'm. asau-l PA'a n rues, Nx.

UNITED STATES PATENT OFFICE.

OSCAR G. SQUYER, OF MINNEAPOLIS, MINNESOTA.

IMPROVEMENT IN BOLTS.

Specification forming part of Letters Patent No. 156,238, dated October 27, 1874; application filed April 11, 1874.

To all whom it may concern:

Be it known that I, OSCAR. (J. SQUYER, of Minneapolis, in the county of Hennepin and State of Minnesota, have invented a new and useful Improvement in Door-Bolts; and I do hereby declare that the following is a full and exact description of the same, reference being had to the accompanying, drawing, making part ofthis specification.

The object of my invention is to provide a bolt that will readily adapt itself to inequalities, and securely fasten doors, even when warped or settled considerably out of place; and it consists in forming the frame or casing of an ordinary door-bolt with graded or stepshaped stops, and in combining therewith a bolt having a cone-shaped end engaging with a coneshaped catch or keeper, as will be hereinafter more fully described.

The figure represents a face or plan view of my improved door-bolt, in which A is the frame or casing, which may be made in any of the various known styles, and has formed on its transverse slot a series of graded 0r step-shaped stops, at a (1 which serve to lock the bolt at various points. B is the bolt, having acme-shaped end, b, for more easily entering the keeper when the door has sagged, and the ordinary operating-knob b;

and O is the catch or keeper, terminating in a cone-shaped point, 0, corresponding to and for engaging with the cone-shaped bolt.

The operation of my device is simple and easily understood. A forward movement of the bolt will enable its cone-shaped end to easily enter the cone-shaped keeper, even when the door has sagged or is considerably warped out of place, and the downward movement of the operating-knob will lock the bolt on either one or another of the step-shaped stops formed in the body of the frame or casing; or, if the door is plumb, the bolt will enter its entire length and lock itself in the usual manner.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

An improved door-bolt, consisting of the frame or casing A, having graded or stepshaped stops 0. a M, the bolt B, having coneshaped end b and operating-knob b and the catch or keeper 0, terminating in cone-shaped point 0, all substantially as described and shown, for the purpose specified.

O. O. SQUYER. Witnesses:

O. F. HAGLIN, J. G. SLAFTER. 

